Bi-directional DisplayPort->USB-C, HDMI->USB-C, and HDMI->DP cables – Dan S. Charlton
Mini HDMI to HDMI Cable, 4K HDMI to mini HDMI 2.0 Bidirectional High Speed Adapt | eBay
Media | Blackmagic Design
Amazon.com: HDMI to DVI Cable 10FT, Bidirectional HDMI to DVI-D(24+1) or DVI to HDMI Male to Male Adapter Cable 10' Bi-Directional Compatible for Raspberry Pi, Roku, Xbox One, PS4 PS3, Graphics Card :